From /usr/local/bin/secpanel: set mintcl 8.0 set mintk 8.0 if {[info tclversion]<$mintcl || $tk_version<$mintk} { puts -nonewline stderr "For running secpanel:\nTcl $mintcl/Tk $mintk minimum versions required. " puts stderr "You have Tcl [info tclversion]/Tk $tk_version" exit 1 }